将 log4j2 与 junit 一起使用时出现 ParserConfigurationException

Question

我使用的是junit 4.10和log4j2 2.10版本

我收到以下异常，我无法弄清楚

ERROR StatusLogger Error parsing /scratch/log4j.xml
javax.xml.parsers.ParserConfigurationException
    at oracle.xml.jaxp.JXDocumentBuilderFactory.setFeature(JXDocumentBuilderFactory.java:374)
    at org.apache.logging.log4j.core.config.xml.XmlConfiguration.setFeature(XmlConfiguration.java:213)
    at org.apache.logging.log4j.core.config.xml.XmlConfiguration.disableDtdProcessing(XmlConfiguration.java:205)
    at org.apache.logging.log4j.core.config.xml.XmlConfiguration.newDocumentBuilder(XmlConfiguration.java:194)
    at org.apache.logging.log4j.core.config.xml.XmlConfiguration.<init>(XmlConfiguration.java:92)
    at org.apache.logging.log4j.core.config.xml.XmlConfigurationFactory.getConfiguration(XmlConfigurationFactory.java:46)
    at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:417)
    at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:346)
    at org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(ConfigurationFactory.java:260)
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:613)
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
    at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:243)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
    at org.apache.logging.log4j.LogManager.getContext(LogManager.java:174)
    at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:648)
    at oracle.oki.service.SampleBaseTest.<clinit>(SampleBaseTest.java:53)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:337)
    at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:931)
    at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:785)
    ERROR StatusLogger No logging configuration

我能够在独立程序中使用相同的配置文件，并且一切顺利。

Answer 1

JRE 默认从 Oracle XML 库 xmlparserv2.jar 检测 XML 解析器。Oracle 解析器不支持 log4j 所需的功能。

可以强制 JRE 使用 JRE 中的默认 XML 解析器

• 任何一个;System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl");
• 或使用 -D 运行时参数； -Djavax.xml.parsers.DocumentBuilderFactory=com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl